Flush tank and closet bowl connection



G. P. GAVIN FLUSH TANK AND QLOSET BOWL CONNECTION July 25, 1939.-

Filed Nov. 24,. 1937 k Elk 1 MWM INVENTOR qoeoolv P 614 VIN 3 7 ATTORN EY Patented July 25, 1939 UNITED STATES PATENT OFFICE FLUSH TANK AND CLOSET BOWL CONNECTION 3 Claims.

My invention relates to improvements in flush tank and closet bowl connections, and the objects of my invention are, first, to provide a connection which is fluid tight yet easily assembled and possessed of a certain degree of flexibility and, second, to provide a connection which may be attached to the tank during shipment, the combination being shipped disassembled, and the assembly being made thereafter.

With the foregoing and related objects in view,

the invention consists in the arrangement illustrated in the accompanying drawing, in which Figure 1 is a side sectional view of a flush tank and closet bowl connected in accordance with the i5 invention; Figure 2, a plan view of the connecting gasket; and Figure 3, a sectional view thereof taken along the lines 33 of Figure 2.

In the drawing the numeral I indicates a flush tank provided with an outlet aperture 2 adapted to receive a tubular flush ball seat 3 of conventional design.

The closet bowl 4 is provided with a rearwardly extending shelf 5 having an inlet aperture 6 communicating with the reservoir 1 of the bowl. The

inlet aperture 6 is beveled at its upper portion 8 as illustrated for a purpose hereinafter described.

The flush tank I and shelf 5 are provided, respectively, with bolt apertures 9 and I0 adapted to receive connecting bolts I I. Y

3 In the preferred embodiment of the invention three bolts are used, one spaced directly behind and in line with the flush ball seat 3, as shown in full lines in Figure 1, and the remaining two positioned in front of the flush ball seat and spaced equidistant therefrom as shown in dotted lines in Figure 1.

A sealing gasket, of rubber or other suitable resilient material and of novel configuration, indicated generally by the numeral 12, is formed with a flat base l3 adapted to abut the flush tank I and a circular aperture l4 adapted to coincide with the outlet aperture 2.

The surface of the gasket l2 opposite the base 13 is formed with a cylindrical recess 15 of greater diameter than the aperture [4, thus forming a portion of the base l3 into a flange l6 and also forming a downwardly extending flange I! which is provided with a beveled exterior surface l8.

The flange i6 is adapted to be clamped to the 50 bottom of the flush tank by means of the nut I9 as illustrated in Figure 1, in which position the beveled surface l8 contacts the beveled surface 8 of the aperture 6 and is forced inwardly by the p g action of the bolts l l, forming a watertight seal.

It will be noted that, due to the coaction of the beveled surfaces 8 and E8, the gasket I2 is practically self centering and, when the tank I is lowered upon the bowl 5, automatically positions itself. It will also be noted that, since the flange I1 is flexible, the connection adapts itself to small variations in the alignment of tank and bowl or slight misalignments thereof.

Furthermore, it is sometimes desirable to have the tank I placed on a line sloping backwardly somewhat from the vertical rather than exactly vertical and, with the foregoing connection this is readily accomplished by tightening the rearmost of the connecting bolts l more tightly than the foremost bolts. 15

It is desirable to ship a tank and bolt assembly disassembled as a more compact package may be made and also less risk of damage to the goods entailed. This connection lends itself to such shipment as the tank may be shipped with the gasket 12 held in position by the nut I9 and the connecting bolts ll attached tothe tank. Thus there are no loose parts liable to be lost in transportation or handling and the combination may be assembled in a few moments by removing the 25 nuts from the bolts ll, placing the tank on the bowl, replacing and tightening the nuts.

I claim:

1. A flush tank and closet bowl connection comprising a flush tank; an outlet aperture therein; 30 a closet bowl having a rearwardly extending shelf; an inlet aperture in said shelf communicating with the interior of said bowl; a beveled upper portion on said inlet aperture; a flush ball seat adapted to fit within the outlet aperture; means for attaching said flush ball seat to the tank and a gasket of resilient material comprising a flat base adapted to abut said flush tank, a circular aperture substantially perpendicular to said base, a circular recess of greater diameter and lesser depth than said aperture oppositely disposed to said base whereby to form an inwardly extending flange adapted to be clamped tosaid flush tank by said attaching means and a downwardly extending flange substantially perpendicular to said inwardly extending flange, said downwardly extending flange having a beveled exterior surface concentric to said circular recess and adapted to abut said inlet aperture.

2. A flush tank and closet bowl connection comprising a flush tank; an outlet aperture therein; a closet bowl; an inlet aperture in said closet bowl; a beveled upper portion on said inlet aperture; a gasket of resilient material comprising a flat base adapted to abut said flush tank, a circuin; a closet bowl; an inlet aperture therein; a gasket of resilient material comprising a base adapted to abut said flush tank, a circular aperture substantially perpendicular to said base, an inwardly extending flange concentric to said aperture and an annular downwardly extending flange concentric to said inwardly extending flange and having a beveled exterior surface adapted to abut said inlet aperture and means positioned within said downwardly extending flange and abutting said inwardly extending flange for attaching said gasket to said flush tank.

GORDON P. GAVIN. 

